Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 291200
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
459 AM PDT FRI JUL 29 2016


*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 5-9 MPH.          W 5-6 MPH.
TRANSPORT WINDS               S 5-9 MPH.          SW 1-4 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT JUL 30        GOOD.

VENTILATION INDEX (CATEGORY)  75 (POOR).          152 (POOR).
OUTLOOK FOR SAT JUL 30        688 (GOOD).

FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-9 MPH.         SW 4-8 MPH.
TRANSPORT WINDS               NW 5-9 MPH.         SW 4-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT JUL 30        FAIR.

VENTILATION INDEX (CATEGORY)  69 (POOR).          408 (FAIR).
OUTLOOK FOR SAT JUL 30        437 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE-SW 1-8 MPH.      NW 3-6 MPH.
TRANSPORT WINDS               SE-SW 1-8 MPH.      NW 1-4 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT JUL 30        GOOD.

VENTILATION INDEX (CATEGORY)  26 (POOR).          175 (POOR).
OUTLOOK FOR SAT JUL 30        651 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      274 (POOR)
ELLENSBURG    531 (FAIR)
GOLDENDALE    345 (FAIR)
TRI-CITIES    298 (POOR)
WALLA WALLA   177 (POOR)
YAKIMA        480 (FAIR)
BEND          190 (POOR)
PRINEVILLE    326 (FAIR)
ENTERPRISE    265 (POOR)
HERMISTON     171 (POOR)
JOHN DAY      410 (FAIR)
LA GRANDE     167 (POOR)
MADRAS        192 (POOR)
MEACHAM       115 (POOR)
PENDLETON      68 (POOR)
REDMOND       267 (POOR)
SENECA        373 (FAIR)
THE DALLES    260 (POOR)

METEOROLOGICAL INFORMATION PROVIDED IN THIS PRODUCT REPRESENTS ONLY
SOME OF THE FACTORS USED IN BURN DECISIONS.  BURN DECISIONS ARE
OUTSIDE THE PURVIEW OF THE NATIONAL WEATHER SERVICE.

THE VENTILATION INDEX IS A TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS.  A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE AT THE FOLLOWING ADDRESS:
HTTP://WWW.WRH.NOAA.GOV/PDT/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.
$$



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